Lithium ion battery
US-11088391-B2 · Aug 10, 2021 · US
Preparation of cellulose esters of organic acids {(rendering cellulose suitable for esterification C08B1/02)}
Preparation of cellulose esters of organic acids {(rendering cellulose suitable for esterification C08B1/02)} · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C08B3/00 |
| Official title | Preparation of cellulose esters of organic acids {(rendering cellulose suitable for esterification C08B1/02)} |
| Display label | Preparation of cellulose esters of organic acids {(rendering cellulose suitable for esterification C08B1/02)} |
| Total patents | 67 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 14 |
| 2016 | 12 |
| 2017 | 8 |
| 2018 | 8 |
| 2019 | 9 |
| 2020 | 6 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Polylactide-grafted cellulose nanofiber and production method thereof
US-11046787-B2 · Jun 29, 2021 · US
Low-substituted hydroxypropyl cellulose and solid preparation
US-10959959-B2 · Mar 30, 2021 · US
Cellulose ester optical films
US-10836835-B2 · Nov 17, 2020 · US
Cross-metathesized polysaccharide derivatives and processes for preparing them
US-10738134-B2 · Aug 11, 2020 · US
Functionalized cellulose nanocrystal materials and methods of preparation
US-10669404-B2 · Jun 2, 2020 · US
Polylactide-grafted cellulose nanofiber and production method thereof
US-2020123275-A1 · Apr 23, 2020 · US
Cellulose ester optical films
US-2020055960-A1 · Feb 20, 2020 · US
Composition set, shaped article production method, and shaped article
US-10533107-B2 · Jan 14, 2020 · US
Composition, shaped article production method, and shaped article
US-10519335-B2 · Dec 31, 2019 · US
Gas separation membrane, gas separation module, gas separation apparatus, and gas separation method
US-10507437-B2 · Dec 17, 2019 · US
Cellulose ester optical films
US-10494447-B2 · Dec 3, 2019 · US
Leuco polymers as bluing agents in laundry care compositions
US-10479961-B2 · Nov 19, 2019 · US
Silver-containing non-aqueous composition containing cellulosic polymers
US-10370515-B2 · Aug 6, 2019 · US
Method for producing polysaccharide derivative and lignin derivative
US-10323101-B2 · Jun 18, 2019 · US
Resin compostion and resin molded article
US-2019144637-A1 · May 16, 2019 · US
Silver-containing non-aqueous composition containing cellulosic polymers
US-2019092923-A1 · Mar 28, 2019 · US
Functionalized cellulose nanocrystal materials and methods of preparation
US-2019092926-A1 · Mar 28, 2019 · US
Cellulose ester optical films
US-2018258189-A1 · Sep 13, 2018 · US
Leuco polymers as bluing agents in laundry care compositions
US-2018155656-A1 · Jun 7, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08B3/00?
- CPC C08B3/00 is the Cooperative Patent Classification code for “Preparation of cellulose esters of organic acids {(rendering cellulose suitable for esterification C08B1/02)}.”
- How many patents are filed under CPC C08B3/00 (Preparation of cellulose esters of organic acids {(rendering cellulose suitable for esterification C08B1/02)})?
- Our database includes 67 publications tagged with this CPC code.
- Is patent activity under CPC C08B3/00 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).